[Interpreter] Ensure ValueOf is only called once for post-increment operations.

test/cctest/interpreter/bytecode_expectations/CountOperators.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 wrap: yes
 
 ---
 snippet: "
   var a = 1; return ++a;
@@ skipping 13 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1; return a++;
 "
 frame size: 2
 parameter count: 1
-bytecode array length: 14
+bytecode array length: 16
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(1),
                 B(Star), R(0),
   /*   45 S> */ B(ToNumber), R(1),
+                B(Ldar), R(1),
                 B(Inc), U8(2),
                 B(Star), R(0),
                 B(Ldar), R(1),
   /*   57 S> */ B(Return),
 ]
 constant pool: [
 ]
 handlers: [
 ]
 
@@ skipping 16 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1; return a--;
 "
 frame size: 2
 parameter count: 1
-bytecode array length: 14
+bytecode array length: 16
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(1),
                 B(Star), R(0),
   /*   45 S> */ B(ToNumber), R(1),
+                B(Ldar), R(1),
                 B(Dec), U8(2),
                 B(Star), R(0),
                 B(Ldar), R(1),
   /*   57 S> */ B(Return),
 ]
 constant pool: [
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = { val: 1 }; return a.val++;
 "
 frame size: 3
 parameter count: 1
-bytecode array length: 24
+bytecode array length: 26
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(CreateObjectLiteral), U8(0), U8(0), U8(1), R(1),
                 B(Mov), R(1), R(0),
   /*   54 S> */ B(LdaNamedProperty), R(0), U8(1), U8(2),
                 B(ToNumber), R(2),
+                B(Ldar), R(2),
                 B(Inc), U8(6),
   /*   66 E> */ B(StaNamedPropertySloppy), R(0), U8(1), U8(4),
                 B(Ldar), R(2),
   /*   70 S> */ B(Return),
 ]
 constant pool: [
   FIXED_ARRAY_TYPE,
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["val"],
 ]
 handlers: [
@@ skipping 21 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var name = 'var'; var a = { val: 1 }; return a[name]--;
 "
 frame size: 5
 parameter count: 1
-bytecode array length: 29
+bytecode array length: 31
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   45 S> */ B(LdaConstant), U8(0),
                 B(Star), R(0),
   /*   60 S> */ B(CreateObjectLiteral), U8(1), U8(0), U8(1), R(2),
                 B(Mov), R(2), R(1),
   /*   72 S> */ B(Ldar), R(0),
   /*   81 E> */ B(LdaKeyedProperty), R(1), U8(2),
                 B(ToNumber), R(4),
+                B(Ldar), R(4),
                 B(Dec), U8(6),
   /*   86 E> */ B(StaKeyedPropertySloppy), R(1), R(0), U8(4),
                 B(Ldar), R(4),
   /*   90 S> */ B(Return),
 ]
 constant pool: [
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["var"],
   FIXED_ARRAY_TYPE,
 ]
 handlers: [
@@ skipping 50 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1; var b = function() { return a }; return a--;
 "
 frame size: 3
 parameter count: 1
-bytecode array length: 25
+bytecode array length: 27
 bytecodes: [
                 B(CreateFunctionContext), U8(1),
                 B(PushContext), R(1),
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(1),
   /*   42 E> */ B(StaCurrentContextSlot), U8(4),
   /*   53 S> */ B(CreateClosure), U8(0), U8(2),
                 B(Star), R(0),
   /*   78 S> */ B(LdaCurrentContextSlot), U8(4),
                 B(ToNumber), R(2),
+                B(Ldar), R(2),
                 B(Dec), U8(2),
   /*   86 E> */ B(StaCurrentContextSlot), U8(4),
                 B(Ldar), R(2),
   /*   90 S> */ B(Return),
 ]
 constant pool: [
   SHARED_FUNCTION_INFO_TYPE,
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var idx = 1; var a = [1, 2]; return a[idx++] = 2;
 "
 frame size: 4
 parameter count: 1
-bytecode array length: 26
+bytecode array length: 28
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   44 S> */ B(LdaSmi), U8(1),
                 B(Star), R(0),
   /*   55 S> */ B(CreateArrayLiteral), U8(0), U8(0), U8(9),
                 B(Star), R(1),
   /*   63 S> */ B(Ldar), R(0),
                 B(ToNumber), R(3),
+                B(Ldar), R(3),
                 B(Inc), U8(2),
                 B(Star), R(0),
                 B(LdaSmi), U8(2),
   /*   79 E> */ B(StaKeyedPropertySloppy), R(1), R(3), U8(3),
   /*   84 S> */ B(Return),
 ]
 constant pool: [
   FIXED_ARRAY_TYPE,
 ]
 handlers: [
 ]