[Parser] Enable the new text parser by default (#6371)

The new text parser is faster and more standards compliant than the old text
parser. Enable it by default in wasm-opt and update the tests to reflect the
slightly different results it produces. Besides following the spec, the new
parser differs from the old parser in that it:

 - Does not synthesize `loop` and `try` labels unnecessarily
 - Synthesizes different block names in some cases
 - Parses exports in a different order
 - Parses `nop`s instead of empty blocks for empty control flow arms
 - Does not support parsing Poppy IR
 - Produces different error messages
 - Cannot parse `pop` except as the first instruction inside a `catch`

8 files changed, 16 insertions, 16 deletions

diff --git a/test/lld/standalone-wasm-with-start.wat b/test/lld/standalone-wasm-with-start.wat
index 8767c8efb..45ba29c1e 100644
--- a/test/lld/standalone-wasm-with-start.wat
+++ b/test/lld/standalone-wasm-with-start.wat
@@ -10,8 +10,9 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $_start (result i32)
-  (nop)
+  (i32.const 0)
+ )
+ (func $foo (result i32)
+  (i32.const 0)
  )
- (func $foo (result i32))
 )
-
diff --git a/test/lld/standalone-wasm-with-start.wat.out b/test/lld/standalone-wasm-with-start.wat.out
index 01a351a7f..472940690 100644
--- a/test/lld/standalone-wasm-with-start.wat.out
+++ b/test/lld/standalone-wasm-with-start.wat.out
@@ -11,9 +11,9 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $_start (result i32)
-  (nop)
+  (i32.const 0)
  )
  (func $foo (result i32)
-  (nop)
+  (i32.const 0)
  )
 )
diff --git a/test/lld/standalone-wasm.wat b/test/lld/standalone-wasm.wat
index 2ccbf3f29..16c4fffd0 100644
--- a/test/lld/standalone-wasm.wat
+++ b/test/lld/standalone-wasm.wat
@@ -10,11 +10,12 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (result i32)
-  (nop)
+  (i32.const 0)
  )
  (func $main (param $0 i32) (param $1 i32) (result i32)
   (call $__original_main)
  )
- (func $foo (result i32))
+ (func $foo (result i32)
+  (i32.const 0)
+ )
 )
-
diff --git a/test/lld/standalone-wasm.wat.out b/test/lld/standalone-wasm.wat.out
index f5c18bc6a..867f2ad13 100644
--- a/test/lld/standalone-wasm.wat.out
+++ b/test/lld/standalone-wasm.wat.out
@@ -12,12 +12,12 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (result i32)
-  (nop)
+  (i32.const 0)
  )
  (func $main (param $0 i32) (param $1 i32) (result i32)
   (call $__original_main)
  )
  (func $foo (result i32)
-  (nop)
+  (i32.const 0)
  )
 )
diff --git a/test/lld/standalone-wasm2.wat b/test/lld/standalone-wasm2.wat
index f4c7843b6..b0abafcc2 100644
--- a/test/lld/standalone-wasm2.wat
+++ b/test/lld/standalone-wasm2.wat
@@ -8,10 +8,9 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (param $0 i32) (param $1 i32) (result i32)
-  (nop)
+  (i32.const 0)
  )
  (func $main (param $0 i32) (param $1 i32) (result i32)
   (call $__original_main (local.get $0) (local.get $1))
  )
 )
-
diff --git a/test/lld/standalone-wasm2.wat.out b/test/lld/standalone-wasm2.wat.out
index 4b98b8500..1cc867e6c 100644
--- a/test/lld/standalone-wasm2.wat.out
+++ b/test/lld/standalone-wasm2.wat.out
@@ -9,7 +9,7 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (param $0 i32) (param $1 i32) (result i32)
-  (nop)
+  (i32.const 0)
  )
  (func $main (param $0 i32) (param $1 i32) (result i32)
   (call $__original_main
diff --git a/test/lld/standalone-wasm3.wat b/test/lld/standalone-wasm3.wat
index 45c0bed35..0e276d601 100644
--- a/test/lld/standalone-wasm3.wat
+++ b/test/lld/standalone-wasm3.wat
@@ -7,7 +7,6 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (param $0 i32) (param $1 i32) (result i32)
-  (nop)
+  (i32.const 0)
  )
 )
-
diff --git a/test/lld/standalone-wasm3.wat.out b/test/lld/standalone-wasm3.wat.out
index df88bf543..b93736881 100644
--- a/test/lld/standalone-wasm3.wat.out
+++ b/test/lld/standalone-wasm3.wat.out
@@ -8,6 +8,6 @@
  (export "__heap_base" (global $global$1))
  (export "__data_end" (global $global$2))
  (func $__original_main (param $0 i32) (param $1 i32) (result i32)
-  (nop)
+  (i32.const 0)
  )
 )