Joe Savona a8fff7cc5c Feature to optimize function expressions ...

This PR adds a new feature which enables additional validation/optimization of 
function expressions, gated by the `enableOptimizeFunctionExpressions` feature 
flag. When disabled, we actually revert the changes earlier in this stack, and 
do all our lowering of function expressions in AnalyzeFunctions. 

When the feature is enabled, we incrementally process function expressions in 
the various compilation stages, eg InferTypes infers into function expressions, 
ConstantPropagation propagates constants into function expressions, etc. Because 
this stage optimizes function expressions, in this mode codegen uses the HIR as 
the source rather than the original babel node. 

The feature is disabled by default so it has no impact on generated code. For 
now i've enabled the feature on just one test to demonstrate constant 
propagation into a function expression.

2023-06-08 18:05:41 -04:00

compiler

Feature to optimize function expressions

2023-06-08 18:05:41 -04:00

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declarativefrontendjavascriptlibraryreactui

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