[Interpreter] Make lazy compilation the default.

test/cctest/interpreter/bytecode_expectations/Generators.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 pool type: mixed
 execute: yes
 wrap: no
 test function name: f
 ignition generators: yes
 
 ---
 snippet: "
   function* f() { }
+  f();
 "
 frame size: 11
 parameter count: 1
 bytecode array length: 203
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(20),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(1),
                 B(LdaZero),
@@ skipping 86 matching lines @@
 ]
 constant pool: [
 ]
 handlers: [
   [38, 139, 145],
 ]
 
 ---
 snippet: "
   function* f() { yield 42 }
+  f();
 "
 frame size: 11
 parameter count: 1
 bytecode array length: 297
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(26),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(1),
                 B(LdaZero),
@@ skipping 130 matching lines @@
 constant pool: [
   kInstanceTypeDontCare,
 ]
 handlers: [
   [44, 224, 230],
 ]
 
 ---
 snippet: "
   function* f() { for (let x of [42]) yield x }
+  f();
 "
 frame size: 17
 parameter count: 1
 bytecode array length: 808
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(26),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(3),
                 B(LdaZero),
@@ skipping 356 matching lines @@
   kInstanceTypeDontCare,
   kInstanceTypeDontCare,
 ]
 handlers: [
   [44, 726, 732],
   [156, 462, 468],
   [159, 413, 415],
   [570, 585, 587],
 ]