diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 7d45872e0c4..fe9550e00c9 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -654,12 +654,12 @@ module ts {
 
         function getExportAssignmentSymbol(symbol: Symbol): Symbol {
             checkTypeOfExportAssignmentSymbol(symbol);
-            return getSymbolLinks(symbol).exportAssignSymbol;
+            return getSymbolLinks(symbol).exportAssignmentSymbol;
         }
 
         function checkTypeOfExportAssignmentSymbol(containerSymbol: Symbol): void {
             var symbolLinks = getSymbolLinks(containerSymbol);
-            if (!symbolLinks.exportAssignChecked) {
+            if (!symbolLinks.exportAssignmentChecked) {
                 var exportInformation = collectExportInformationForSourceFileOrModule(containerSymbol);
                 if (exportInformation.exportAssignments.length) {
                     if (exportInformation.exportAssignments.length > 1) {
@@ -679,9 +679,9 @@ module ts {
                         var meaning = SymbolFlags.Value | SymbolFlags.Type | SymbolFlags.Namespace;
                         var exportSymbol = resolveName(node, node.exportName.text, meaning, Diagnostics.Cannot_find_name_0, node.exportName);
                     }
-                    symbolLinks.exportAssignSymbol = exportSymbol || unknownSymbol;
+                    symbolLinks.exportAssignmentSymbol = exportSymbol || unknownSymbol;
                 }
-                symbolLinks.exportAssignChecked = true;
+                symbolLinks.exportAssignmentChecked = true;
             }
         }
 
@@ -10187,7 +10187,7 @@ module ts {
                 if (baseName.charCodeAt(0) !== CharacterCodes._) {
                     var baseName = "_" + baseName;
                     if (!isExistingName(baseName)) {
-                        return baseName;
+                        return generatedNames[baseName] = baseName;
                     }
                 }
                 // Find the first unique '_name_n', where n is a positive number
@@ -10198,14 +10198,13 @@ module ts {
                 while (true) {
                     name = baseName + i;
                     if (!isExistingName(name)) {
-                        return name;
+                        return generatedNames[name] = name;
                     }
                     i++;
                 }
             }
 
             function assignGeneratedName(node: Node, name: string) {
-                generatedNames[name] = name;
                 getNodeLinks(node).generatedName = unescapeIdentifier(name);
             }
 
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 9071cd03077..3439ddbdc60 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -1273,19 +1273,19 @@ module ts {
         members?: SymbolTable;         // Class, interface or literal instance members
         exports?: SymbolTable;         // Module exports
         exportSymbol?: Symbol;         // Exported symbol associated with this symbol
-        valueDeclaration?: Declaration // First value declaration of the symbol,
-        constEnumOnlyModule?: boolean // For modules - if true - module contains only const enums or other modules with only const enums.
+        valueDeclaration?: Declaration // First value declaration of the symbol
+        constEnumOnlyModule?: boolean  // True if module contains only const enums or other modules with only const enums
     }
 
     export interface SymbolLinks {
-        target?: Symbol;               // Resolved (non-alias) target of an alias
-        type?: Type;                   // Type of value symbol
-        declaredType?: Type;           // Type of class, interface, enum, or type parameter
-        mapper?: TypeMapper;           // Type mapper for instantiation alias
-        referenced?: boolean;          // True if alias symbol has been referenced as a value
-        exportAssignChecked?: boolean; // True if export assignment was checked
-        exportAssignSymbol?: Symbol;   // Symbol exported from external module
-        unionType?: UnionType;         // Containing union type for union property
+        target?: Symbol;                    // Resolved (non-alias) target of an alias
+        type?: Type;                        // Type of value symbol
+        declaredType?: Type;                // Type of class, interface, enum, or type parameter
+        mapper?: TypeMapper;                // Type mapper for instantiation alias
+        referenced?: boolean;               // True if alias symbol has been referenced as a value
+        exportAssignmentChecked?: boolean;  // True if export assignment was checked
+        exportAssignmentSymbol?: Symbol;    // Symbol exported from external module
+        unionType?: UnionType;              // Containing union type for union property
     }
 
     export interface TransientSymbol extends Symbol, SymbolLinks { }
diff --git a/tests/baselines/reference/APISample_compile.js b/tests/baselines/reference/APISample_compile.js
index 4b8c7b1ae22..8dfe054a8cf 100644
--- a/tests/baselines/reference/APISample_compile.js
+++ b/tests/baselines/reference/APISample_compile.js
@@ -1003,8 +1003,8 @@ declare module "typescript" {
         declaredType?: Type;
         mapper?: TypeMapper;
         referenced?: boolean;
-        exportAssignChecked?: boolean;
-        exportAssignSymbol?: Symbol;
+        exportAssignmentChecked?: boolean;
+        exportAssignmentSymbol?: Symbol;
         unionType?: UnionType;
     }
     interface TransientSymbol extends Symbol, SymbolLinks {
diff --git a/tests/baselines/reference/APISample_compile.types b/tests/baselines/reference/APISample_compile.types
index 1d20e846b78..3b179fca7c8 100644
--- a/tests/baselines/reference/APISample_compile.types
+++ b/tests/baselines/reference/APISample_compile.types
@@ -3247,11 +3247,11 @@ declare module "typescript" {
         referenced?: boolean;

 >referenced : boolean
 
-        exportAssignChecked?: boolean;

->exportAssignChecked : boolean
+        exportAssignmentChecked?: boolean;

+>exportAssignmentChecked : boolean
 
-        exportAssignSymbol?: Symbol;

->exportAssignSymbol : Symbol
+        exportAssignmentSymbol?: Symbol;

+>exportAssignmentSymbol : Symbol
 >Symbol : Symbol
 
         unionType?: UnionType;

diff --git a/tests/baselines/reference/APISample_linter.js b/tests/baselines/reference/APISample_linter.js
index 205084084cb..8dce2ee7a3c 100644
--- a/tests/baselines/reference/APISample_linter.js
+++ b/tests/baselines/reference/APISample_linter.js
@@ -1034,8 +1034,8 @@ declare module "typescript" {
         declaredType?: Type;
         mapper?: TypeMapper;
         referenced?: boolean;
-        exportAssignChecked?: boolean;
-        exportAssignSymbol?: Symbol;
+        exportAssignmentChecked?: boolean;
+        exportAssignmentSymbol?: Symbol;
         unionType?: UnionType;
     }
     interface TransientSymbol extends Symbol, SymbolLinks {
diff --git a/tests/baselines/reference/APISample_linter.types b/tests/baselines/reference/APISample_linter.types
index fe1572e09d4..f427525972e 100644
--- a/tests/baselines/reference/APISample_linter.types
+++ b/tests/baselines/reference/APISample_linter.types
@@ -3391,11 +3391,11 @@ declare module "typescript" {
         referenced?: boolean;

 >referenced : boolean
 
-        exportAssignChecked?: boolean;

->exportAssignChecked : boolean
+        exportAssignmentChecked?: boolean;

+>exportAssignmentChecked : boolean
 
-        exportAssignSymbol?: Symbol;

->exportAssignSymbol : Symbol
+        exportAssignmentSymbol?: Symbol;

+>exportAssignmentSymbol : Symbol
 >Symbol : Symbol
 
         unionType?: UnionType;

diff --git a/tests/baselines/reference/APISample_transform.js b/tests/baselines/reference/APISample_transform.js
index 047575affd3..98cfa8a48c3 100644
--- a/tests/baselines/reference/APISample_transform.js
+++ b/tests/baselines/reference/APISample_transform.js
@@ -1035,8 +1035,8 @@ declare module "typescript" {
         declaredType?: Type;
         mapper?: TypeMapper;
         referenced?: boolean;
-        exportAssignChecked?: boolean;
-        exportAssignSymbol?: Symbol;
+        exportAssignmentChecked?: boolean;
+        exportAssignmentSymbol?: Symbol;
         unionType?: UnionType;
     }
     interface TransientSymbol extends Symbol, SymbolLinks {
diff --git a/tests/baselines/reference/APISample_transform.types b/tests/baselines/reference/APISample_transform.types
index 476a5d9a5f2..3e88a052c31 100644
--- a/tests/baselines/reference/APISample_transform.types
+++ b/tests/baselines/reference/APISample_transform.types
@@ -3343,11 +3343,11 @@ declare module "typescript" {
         referenced?: boolean;

 >referenced : boolean
 
-        exportAssignChecked?: boolean;

->exportAssignChecked : boolean
+        exportAssignmentChecked?: boolean;

+>exportAssignmentChecked : boolean
 
-        exportAssignSymbol?: Symbol;

->exportAssignSymbol : Symbol
+        exportAssignmentSymbol?: Symbol;

+>exportAssignmentSymbol : Symbol
 >Symbol : Symbol
 
         unionType?: UnionType;

diff --git a/tests/baselines/reference/APISample_watcher.js b/tests/baselines/reference/APISample_watcher.js
index 76dc7484614..62f14a50b04 100644
--- a/tests/baselines/reference/APISample_watcher.js
+++ b/tests/baselines/reference/APISample_watcher.js
@@ -1072,8 +1072,8 @@ declare module "typescript" {
         declaredType?: Type;
         mapper?: TypeMapper;
         referenced?: boolean;
-        exportAssignChecked?: boolean;
-        exportAssignSymbol?: Symbol;
+        exportAssignmentChecked?: boolean;
+        exportAssignmentSymbol?: Symbol;
         unionType?: UnionType;
     }
     interface TransientSymbol extends Symbol, SymbolLinks {
diff --git a/tests/baselines/reference/APISample_watcher.types b/tests/baselines/reference/APISample_watcher.types
index b89b7446230..c5de12d5b03 100644
--- a/tests/baselines/reference/APISample_watcher.types
+++ b/tests/baselines/reference/APISample_watcher.types
@@ -3516,11 +3516,11 @@ declare module "typescript" {
         referenced?: boolean;

 >referenced : boolean
 
-        exportAssignChecked?: boolean;

->exportAssignChecked : boolean
+        exportAssignmentChecked?: boolean;

+>exportAssignmentChecked : boolean
 
-        exportAssignSymbol?: Symbol;

->exportAssignSymbol : Symbol
+        exportAssignmentSymbol?: Symbol;

+>exportAssignmentSymbol : Symbol
 >Symbol : Symbol
 
         unionType?: UnionType;