Try to fix build more -- like r252392 but for WebAssembly.

llvm-svn: 252394

[WebAssembly] Fix CFG stackification of nested loops.

llvm-svn: 249187

[WebAssembly] Check in an initial CFG Stackifier pass

This pass implements a simple algorithm for conversion from CFG to
wasm's structured control flow. It doesn't yet handle multiple-entry
loops; t

[WebAssembly] Check in an initial CFG Stackifier pass

This pass implements a simple algorithm for conversion from CFG to
wasm's structured control flow. It doesn't yet handle multiple-entry
loops; that will be added in a future patch.

It also adds initial support for switch statements.

Differential Revision: http://reviews.llvm.org/D12735

llvm-svn: 247818

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