[turbofan] Remove the function reload hack for OSR.

src/compiler/code-generator.cc

Index: src/compiler/code-generator.cc
diff --git a/src/compiler/code-generator.cc b/src/compiler/code-generator.cc
index 68d4cc38575eb9438d6ee354f756276b6878f23f..57d14a290a6274614c2fa46571043f902be0b264 100644
--- a/src/compiler/code-generator.cc
+++ b/src/compiler/code-generator.cc
@@ -239,6 +239,12 @@ void CodeGenerator::RecordSafepoint(ReferenceMap* references,
       // Safepoint table indices are 0-based from the beginning of the spill
       // slot area, adjust appropriately.
       index -= stackSlotToSpillSlotDelta;
+      // We might index values in the fixed part of the frame (i.e. the
+      // closure pointer or the context pointer); these are not spill slots
+      // and therefore don't work with the SafepointTable currently, but
+      // we also don't need to worry about them, since the GC has special
+      // knowledge about those fields anyway.
+      if (index < 0) continue;
       safepoint.DefinePointerSlot(index, zone());
     } else if (operand.IsRegister() && (kind & Safepoint::kWithRegisters)) {
       Register reg = LocationOperand::cast(operand).GetRegister();