[interpreter] Fix source positions for exception messages.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index 412c0d34356c56e3988c29f9da2418c6d2a00721..9c93da1d4770da67fca10f24d6eb914f32054ccf 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -1755,6 +1755,7 @@ void BytecodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
 
 
 void BytecodeGenerator::VisitVariableProxy(VariableProxy* proxy) {
+  builder()->SetExpressionPosition(proxy);
   VisitVariableLoad(proxy->var(), proxy->VariableFeedbackSlot());
 }
 
@@ -2199,6 +2200,7 @@ void BytecodeGenerator::VisitAssignment(Assignment* expr) {
   }
 
   // Store the value.
+  builder()->SetExpressionPosition(expr);
   FeedbackVectorSlot slot = expr->AssignmentSlot();
   switch (assign_type) {
     case VARIABLE: {
@@ -2236,6 +2238,7 @@ void BytecodeGenerator::VisitYield(Yield* expr) { UNIMPLEMENTED(); }
 
 void BytecodeGenerator::VisitThrow(Throw* expr) {
   VisitForAccumulatorValue(expr->exception());
+  builder()->SetExpressionPosition(expr);
   builder()->Throw();
   // Throw statments are modeled as expression instead of statments. These are
   // converted from assignment statements in Rewriter::ReWrite pass. An
@@ -2248,6 +2251,7 @@ void BytecodeGenerator::VisitThrow(Throw* expr) {
 void BytecodeGenerator::VisitPropertyLoad(Register obj, Property* expr) {
   LhsKind property_kind = Property::GetAssignType(expr);
   FeedbackVectorSlot slot = expr->PropertyFeedbackSlot();
+  builder()->SetExpressionPosition(expr);
   switch (property_kind) {
     case VARIABLE:
       UNREACHABLE();
@@ -2756,6 +2760,7 @@ void BytecodeGenerator::VisitCountOperation(CountOperation* expr) {
   builder()->CountOperation(expr->binary_op());
 
   // Store the value.
+  builder()->SetExpressionPosition(expr);
   FeedbackVectorSlot feedback_slot = expr->CountSlot();
   switch (assign_type) {
     case VARIABLE: {
@@ -2815,6 +2820,7 @@ void BytecodeGenerator::VisitBinaryOperation(BinaryOperation* binop) {
 void BytecodeGenerator::VisitCompareOperation(CompareOperation* expr) {
   Register lhs = VisitForRegisterValue(expr->left());
   VisitForAccumulatorValue(expr->right());
+  builder()->SetExpressionPosition(expr);
   builder()->CompareOperation(expr->op(), lhs);
   execution_result()->SetResultInAccumulator();
 }