Revert of [wasm] Fix location for error in asm.js ToNumber conversion

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 22357a7a4da5332341f38a03f4ac90f8b3b673e6..f799e51bd1ae3f3c29ec433b9b4de39bcfd7e265 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -137,14 +137,14 @@
 
   // For machine graph testing entry point.
   PipelineData(ZoneStats* zone_stats, CompilationInfo* info, Graph* graph,
-               Schedule* schedule, SourcePositionTable* source_positions)
+               Schedule* schedule)
       : isolate_(info->isolate()),
         info_(info),
         debug_name_(info_->GetDebugName()),
         zone_stats_(zone_stats),
         graph_zone_scope_(zone_stats_, ZONE_NAME),
         graph_(graph),
-        source_positions_(source_positions),
+        source_positions_(new (info->zone()) SourcePositionTable(graph_)),
         schedule_(schedule),
         instruction_zone_scope_(zone_stats_, ZONE_NAME),
         instruction_zone_(instruction_zone_scope_.zone()),
@@ -1641,8 +1641,7 @@
 
   // Construct a pipeline for scheduling and code generation.
   ZoneStats zone_stats(isolate->allocator());
-  SourcePositionTable source_positions(graph);
-  PipelineData data(&zone_stats, &info, graph, schedule, &source_positions);
+  PipelineData data(&zone_stats, &info, graph, schedule);
   std::unique_ptr<PipelineStatistics> pipeline_statistics;
   if (FLAG_turbo_stats || FLAG_turbo_stats_nvp) {
     pipeline_statistics.reset(new PipelineStatistics(&info, &zone_stats));
@@ -1690,16 +1689,13 @@
 }
 
 // static
-Handle<Code> Pipeline::GenerateCodeForTesting(
-    CompilationInfo* info, CallDescriptor* call_descriptor, Graph* graph,
-    Schedule* schedule, SourcePositionTable* source_positions) {
+Handle<Code> Pipeline::GenerateCodeForTesting(CompilationInfo* info,
+                                              CallDescriptor* call_descriptor,
+                                              Graph* graph,
+                                              Schedule* schedule) {
   // Construct a pipeline for scheduling and code generation.
   ZoneStats zone_stats(info->isolate()->allocator());
-  // TODO(wasm): Refactor code generation to check for non-existing source
-  // table, then remove this conditional allocation.
-  if (!source_positions)
-    source_positions = new (info->zone()) SourcePositionTable(graph);
-  PipelineData data(&zone_stats, info, graph, schedule, source_positions);
+  PipelineData data(&zone_stats, info, graph, schedule);
   std::unique_ptr<PipelineStatistics> pipeline_statistics;
   if (FLAG_turbo_stats || FLAG_turbo_stats_nvp) {
     pipeline_statistics.reset(new PipelineStatistics(info, &zone_stats));