[wasm] Generate source position information

src/compiler/pipeline.h

Index: src/compiler/pipeline.h
diff --git a/src/compiler/pipeline.h b/src/compiler/pipeline.h
index e22c1db269456bebb6a29e7e276952fdccaab089..d0284a61aac44cf28962e18ad060fda4b5b89e00 100644
--- a/src/compiler/pipeline.h
+++ b/src/compiler/pipeline.h
@@ -24,6 +24,7 @@ class InstructionSequence;
 class Linkage;
 class PipelineData;
 class Schedule;
+class SourcePositionTable;
 
 class Pipeline {
  public:
@@ -32,6 +33,13 @@ class Pipeline {
   // Run the entire pipeline and generate a handle to a code object.
   Handle<Code> GenerateCode();
 
+  // Run the pipeline on a machine graph, compute a new schedule and generate
+  // code.

[Michael Starzinger, 2016/04/22 11:30:21]

nit: We could even add "(specifically modeled for the WASM compiler)" to the
comment.

+  static Handle<Code> GenerateWASMCode(CompilationInfo* info,
+                                       CallDescriptor* call_descriptor,
+                                       Graph* graph,
+                                       SourcePositionTable* source_positions);
+
   // Run the pipeline on a machine graph and generate code. The {schedule} must
   // be valid, hence the given {graph} does not need to be schedulable.
   static Handle<Code> GenerateCodeForCodeStub(Isolate* isolate,