Auto merge of #54939 - pnkfelix:issue-54478-dont-prefer-dynamic-in-doc-tests, r=QuietMisdreavus

rustdoc: don't prefer dynamic linking in doc tests

This is an attempt to address the regression in #54478

This may be a case where the cure is worse than the disease, at least in the short term...

cc @alexcrichton

Author: bors

Diff for: src/librustdoc/test.rs

@@ -220,7 +220,6 @@ fn run_test(test: &str, cratename: &str, filename: &FileName, line: usize,
         output_types: outputs,
         externs,
         cg: config::CodegenOptions {
-            prefer_dynamic: true,
             linker,
             ..cg
         },

Diff for: src/test/rustdoc-ui/failed-doctest-output.stdout

@@ -12,7 +12,7 @@ error[E0425]: cannot find value `no` in this scope
 3 | no
   | ^^ not found in this scope
 
-thread '$DIR/failed-doctest-output.rs - OtherStruct (line 26)' panicked at 'couldn't compile the test', librustdoc/test.rs:333:13
+thread '$DIR/failed-doctest-output.rs - OtherStruct (line 26)' panicked at 'couldn't compile the test', librustdoc/test.rs:332:13
 note: Run with `RUST_BACKTRACE=1` for a backtrace.
 
 ---- $DIR/failed-doctest-output.rs - SomeStruct (line 20) stdout ----
@@ -21,7 +21,7 @@ thread '$DIR/failed-doctest-output.rs - SomeStruct (line 20)' panicked at 'test
 thread 'main' panicked at 'oh no', $DIR/failed-doctest-output.rs:3:1
 note: Run with `RUST_BACKTRACE=1` for a backtrace.
 
-', librustdoc/test.rs:368:17
+', librustdoc/test.rs:367:17
 
 
 failures: