Classes: Partial fix for constructor not calling super

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index e685cc911058bd44b76644ef13473d436f4c2297..1d73199929973245288c9069c52d2d2fe1da02a8 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -440,7 +440,9 @@ void FullCodeGenerator::EmitReturnSequence() {
       // Here we use masm_-> instead of the __ macro to avoid the code coverage
       // tool from instrumenting as we rely on the code size here.
       int32_t sp_delta = (info_->scope()->num_parameters() + 1) * kPointerSize;
-      CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
+      if (function()->end_position() != RelocInfo::kNoPosition) {
+        CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
+      }
       __ RecordJSReturn();
       masm_->mov(sp, fp);
       int no_frame_start = masm_->pc_offset();