Split TIntermDeclaration from TIntermAggregate

The new class TIntermDeclaration is now used for struct, interface
block and variable declarations. TIntermDeclaration nodes do not have
a type - rather the type is stored in each child node. The types may
differ in case the declaration is a series of array declarators with
mismatching sizes.

TIntermAggregate is still used for function calls, function
prototypes, function parameter lists and invariant declarations.

BUG=angleproject:1490
TEST=angle_unittests

Change-Id: I0457188f354481470855f61ac1c878fc2579b1d1
Reviewed-on: https://chromium-review.googlesource.com/400023
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/compiler/translator/RewriteElseBlocks.cpp b/src/compiler/translator/RewriteElseBlocks.cpp
index aafb86f..937de11 100644
--- a/src/compiler/translator/RewriteElseBlocks.cpp
+++ b/src/compiler/translator/RewriteElseBlocks.cpp
@@ -70,8 +70,7 @@
 
     nextTemporaryIndex();
 
-    TIntermTyped *typedCondition     = ifElse->getCondition()->getAsTyped();
-    TIntermAggregate *storeCondition = createTempInitDeclaration(typedCondition);
+    TIntermDeclaration *storeCondition = createTempInitDeclaration(ifElse->getCondition());
 
     TIntermBlock *falseBlock = nullptr;