Remove Decl::getCompoundBody().

This has 2 (slight) advantages:
-Make explicit at getBody()'s callsite that we expect/handle only CompoundStmt and not CXXTryStmt.
-Better tracking of Decl::getBody()'s callsites.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107771 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed