Move encode_metadata out of CrateStore.

Author: cjgillot

scripts/filter_profile.rs

@@ -96,7 +96,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             stack = &stack[..index + REPORT_SYMBOL_NAMES.len()];
         }
 
-        const ENCODE_METADATA: &str = "rustc_middle::ty::context::TyCtxt::encode_metadata";
+        const ENCODE_METADATA: &str = "rustc_metadata::encode_metadata";
         if let Some(index) = stack.find(ENCODE_METADATA) {
             stack = &stack[..index + ENCODE_METADATA.len()];
         }

src/metadata.rs

@@ -7,7 +7,11 @@ use rustc_middle::middle::cstore::EncodedMetadata;
 use rustc_middle::ty::TyCtxt;
 
 // Adapted from https://github.com/rust-lang/rust/blob/da573206f87b5510de4b0ee1a9c044127e409bd3/src/librustc_codegen_llvm/base.rs#L47-L112
-pub(crate) fn new_metadata_object(tcx: TyCtxt<'_>, cgu_name: &str, metadata: &EncodedMetadata) -> Vec<u8> {
+pub(crate) fn new_metadata_object(
+    tcx: TyCtxt<'_>,
+    cgu_name: &str,
+    metadata: &EncodedMetadata,
+) -> Vec<u8> {
     use snap::write::FrameEncoder;
     use std::io::Write;