[interpreter] Introduce binary op bytecodes for Smi operand.

test/cctest/interpreter/bytecode_expectations/ArrayLiterals.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 pool type: mixed
 execute: yes
 wrap: yes
 
 ---
@@ skipping 13 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1; return [ a, a + 1 ];
 "
 frame size: 3
 parameter count: 1
-bytecode array length: 35
+bytecode array length: 34
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(1),
                 B(Star), R(0),
   /*   45 S> */ B(CreateArrayLiteral), U8(0), U8(0), U8(3),
                 B(Star), R(2),
                 B(LdaZero),
                 B(Star), R(1),
                 B(Ldar), R(0),
   /*   54 E> */ B(StaKeyedPropertySloppy), R(2), R(1), U8(1),
                 B(LdaSmi), U8(1),
                 B(Star), R(1),
-                B(LdaSmi), U8(1),
-  /*   57 E> */ B(Add), R(0),
+  /*   57 E> */ B(AddSmi), U8(1), R(0),
                 B(StaKeyedPropertySloppy), R(2), R(1), U8(1),
                 B(Ldar), R(2),
   /*   66 S> */ B(Return),
 ]
 constant pool: [
   InstanceType::FIXED_ARRAY_TYPE,
 ]
 handlers: [
 ]
 
@@ skipping 14 matching lines @@
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1; return [ [ a, 2 ], [ a + 2 ] ];
 "
 frame size: 5
 parameter count: 1
-bytecode array length: 65
+bytecode array length: 64
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaSmi), U8(1),
                 B(Star), R(0),
   /*   45 S> */ B(CreateArrayLiteral), U8(0), U8(2), U8(2),
                 B(Star), R(2),
                 B(LdaZero),
                 B(Star), R(1),
                 B(CreateArrayLiteral), U8(1), U8(0), U8(3),
                 B(Star), R(4),
                 B(LdaZero),
                 B(Star), R(3),
                 B(Ldar), R(0),
   /*   56 E> */ B(StaKeyedPropertySloppy), R(4), R(3), U8(1),
                 B(Ldar), R(4),
                 B(StaKeyedPropertySloppy), R(2), R(1), U8(5),
                 B(LdaSmi), U8(1),
                 B(Star), R(1),
                 B(CreateArrayLiteral), U8(2), U8(1), U8(3),
                 B(Star), R(4),
                 B(LdaZero),
                 B(Star), R(3),
-                B(LdaSmi), U8(2),
-  /*   66 E> */ B(Add), R(0),
+  /*   66 E> */ B(AddSmi), U8(2), R(0),
                 B(StaKeyedPropertySloppy), R(4), R(3), U8(3),
                 B(Ldar), R(4),
                 B(StaKeyedPropertySloppy), R(2), R(1), U8(5),
                 B(Ldar), R(2),
   /*   77 S> */ B(Return),
 ]
 constant pool: [
   InstanceType::FIXED_ARRAY_TYPE,
   InstanceType::FIXED_ARRAY_TYPE,
   InstanceType::FIXED_ARRAY_TYPE,
 ]
 handlers: [
 ]