Add a bailout id just before every variable load in fullcode.

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1139733002

Cr-Commit-Position: refs/heads/master@{#28344}

src/arm/full-codegen-arm.cc

@@ -1493,6 +1493,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/arm64/full-codegen-arm64.cc

@@ -1472,6 +1472,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/ast.h

@@ -1621,6 +1621,9 @@ class VariableProxy final : public Expression {
     return variable_feedback_slot_;
   }
 
+  static int num_ids() { return parent_num_ids() + 1; }
+  BailoutId BeforeId() const { return BailoutId(local_id(0)); }
+
  protected:
   VariableProxy(Zone* zone, Variable* var, int start_position,
                 int end_position);
@@ -1628,6 +1631,8 @@ class VariableProxy final : public Expression {
   VariableProxy(Zone* zone, const AstRawString* name,
                 Variable::Kind variable_kind, int start_position,
                 int end_position);
+  static int parent_num_ids() { return Expression::num_ids(); }
+  int local_id(int n) const { return base_id() + parent_num_ids() + n; }
 
   class IsThisField : public BitField8<bool, 0, 1> {};
   class IsAssignedField : public BitField8<bool, 1, 1> {};

src/ia32/full-codegen-ia32.cc

@@ -1419,6 +1419,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/mips/full-codegen-mips.cc

@@ -1477,6 +1477,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/mips64/full-codegen-mips64.cc

@@ -1474,6 +1474,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/ppc/full-codegen-ppc.cc

@@ -1451,6 +1451,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/x64/full-codegen-x64.cc

@@ -1454,6 +1454,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of

src/x87/full-codegen-x87.cc

@@ -1411,6 +1411,7 @@ void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
+  PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS);
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of