parser: update test bodies to match upstream verbatim

Update test content to match upstream exactly:
- "block with same line comment after end brace"
- "comments before var decl in struct"
- "comments before global variables"
- "comments in statements"
- "comments before test decl"

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

parser_test.zig

@@ -2336,10 +2336,10 @@ test "zig fmt: nested blocks" {
 
 test "zig fmt: block with same line comment after end brace" {
     try testCanonical(
-        \\test {
+        \\comptime {
         \\    {
-        \\        const a = b;
+        \\        b();
-        \\    } // end of block
+        \\    } // comment
         \\}
         \\
     );
@@ -2667,9 +2667,24 @@ test "zig fmt: comments before switch prong" {
 
 test "zig fmt: comments before var decl in struct" {
     try testCanonical(
-        \\const Foo = struct {
+        \\pub const vfs_cap_data = extern struct {
-        \\    /// comment
+        \\    // All of these are mandated as little endian
-        \\    bar: bool = true,
+        \\    // when on disk.
+        \\    const Data = struct {
+        \\        permitted: u32,
+        \\        inheritable: u32,
+        \\    };
+        \\
+        \\    // in between
+        \\
+        \\    /// All of these are mandated as little endian
+        \\    /// when on disk.
+        \\    const Data = struct {
+        \\        permitted: u32,
+        \\        inheritable: u32,
+        \\    };
+        \\
+        \\    // at end
         \\};
         \\
     );
@@ -2684,20 +2699,23 @@ test "zig fmt: array literal with 1 item on 1 line" {
 
 test "zig fmt: comments before global variables" {
     try testCanonical(
-        \\/// comment
+        \\/// Foo copies keys and values before they go into the map, and
-        \\var foo: i32 = undefined;
+        \\/// frees them when they get removed.
+        \\pub const Foo = struct {};
         \\
     );
 }
 
 test "zig fmt: comments in statements" {
     try testCanonical(
-        \\comptime {
+        \\test "std" {
-        \\    // a
+        \\    // statement comment
+        \\    _ = @import("foo/bar.zig");
         \\
-        \\    const x = 42; // b
+        \\    // middle
+        \\    // middle2
         \\
-        \\    // c
+        \\    // end
         \\}
         \\
     );
@@ -2705,9 +2723,13 @@ test "zig fmt: comments in statements" {
 
 test "zig fmt: comments before test decl" {
     try testCanonical(
-        \\/// top level doc comment
+        \\// top level normal comment
         \\test "hi" {}
         \\
+        \\// middle
+        \\
+        \\// end
+        \\
     );
 }