[ignition] Eliminate hole checks where statically possible for loads and stores

test/cctest/interpreter/bytecode_expectations/LetVariable.golden

Index: test/cctest/interpreter/bytecode_expectations/LetVariable.golden
diff --git a/test/cctest/interpreter/bytecode_expectations/LetVariable.golden b/test/cctest/interpreter/bytecode_expectations/LetVariable.golden
index d9d8f79e0a7c17f61ec34cb96215ffa331d412f8..74709fdab915e976827d1eaf995342982e905f0d 100644
--- a/test/cctest/interpreter/bytecode_expectations/LetVariable.golden
+++ b/test/cctest/interpreter/bytecode_expectations/LetVariable.golden
@@ -30,23 +30,19 @@ handlers: [
 snippet: "
   let x = 10; return x;
 "
-frame size: 2
+frame size: 1
 parameter count: 1
-bytecode array length: 20
+bytecode array length: 10
 bytecodes: [
                 B(LdaTheHole),
                 B(Star), R(0),
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(10),
                 B(Star), R(0),
-  /*   46 S> */ B(JumpIfNotHole), U8(11),
-                B(LdaConstant), U8(0),
-                B(Star), R(1),
-                B(CallRuntime), U16(Runtime::kThrowReferenceError), R(1), U8(1),
+  /*   46 S> */ B(Nop),
   /*   56 S> */ B(Return),
 ]
 constant pool: [
-  ONE_BYTE_INTERNALIZED_STRING_TYPE ["x"],
 ]
 handlers: [
 ]
@@ -84,9 +80,9 @@ handlers: [
 snippet: "
   let x = 10; x = 20;
 "
-frame size: 3
+frame size: 1
 parameter count: 1
-bytecode array length: 30
+bytecode array length: 14
 bytecodes: [
                 B(LdaTheHole),
                 B(Star), R(0),
@@ -94,18 +90,11 @@ bytecodes: [
   /*   42 S> */ B(LdaSmi), U8(10),
                 B(Star), R(0),
   /*   46 S> */ B(LdaSmi), U8(20),
-                B(Star), R(1),
-                B(Ldar), R(0),
-                B(JumpIfNotHole), U8(11),
-                B(LdaConstant), U8(0),
-                B(Star), R(2),
-  /*   48 E> */ B(CallRuntime), U16(Runtime::kThrowReferenceError), R(2), U8(1),
-                B(Mov), R(1), R(0),
+                B(Star), R(0),
                 B(LdaUndefined),
   /*   54 S> */ B(Return),
 ]
 constant pool: [
-  ONE_BYTE_INTERNALIZED_STRING_TYPE ["x"],
 ]
 handlers: [
 ]