[MIPS] Fix symbols being filtered out from target side of diff if target object contains .NON_MATCHING markers (#250)

* Fix filtering out symbols from the target side that have a symbol with the same name and a `.NON_MATCHING` suffix.

- Target side: Show all the symbols except the `.NON_MATCHING` ones.
- Base side: Ignore all the `.NON_MATCHING` symbols and also ignore the ones with the same name without the suffix

* fmt

* comment

* tests

* fmt tests

* maybe this could fix wasm?

* Fix wasm?

* fmt

* Move `DiffSide` to `diff` mod

* Update the stuff the advisories CI told me to

objdiff-core/src/obj/read.rs

@@ -12,7 +12,7 @@ use object::{Object as _, ObjectSection as _, ObjectSymbol as _};
 
 use crate::{
     arch::{Arch, RelocationOverride, RelocationOverrideTarget, new_arch},
-    diff::DiffObjConfig,
+    diff::{DiffObjConfig, DiffSide},
     obj::{
         FlowAnalysisResult, Object, Relocation, RelocationFlags, Section, SectionData, SectionFlag,
         SectionKind, Symbol, SymbolFlag, SymbolKind,
@@ -925,21 +925,25 @@ fn do_combine_sections(
 }
 
 #[cfg(feature = "std")]
-pub fn read(obj_path: &std::path::Path, config: &DiffObjConfig) -> Result<Object> {
+pub fn read(
+    obj_path: &std::path::Path,
+    config: &DiffObjConfig,
+    diff_side: DiffSide,
+) -> Result<Object> {
     let (data, timestamp) = {
         let file = std::fs::File::open(obj_path)?;
         let timestamp = filetime::FileTime::from_last_modification_time(&file.metadata()?);
         (unsafe { memmap2::Mmap::map(&file) }?, timestamp)
     };
-    let mut obj = parse(&data, config)?;
+    let mut obj = parse(&data, config, diff_side)?;
     obj.path = Some(obj_path.to_path_buf());
     obj.timestamp = Some(timestamp);
     Ok(obj)
 }
 
-pub fn parse(data: &[u8], config: &DiffObjConfig) -> Result<Object> {
+pub fn parse(data: &[u8], config: &DiffObjConfig, diff_side: DiffSide) -> Result<Object> {
     let obj_file = object::File::parse(data)?;
-    let mut arch = new_arch(&obj_file)?;
+    let mut arch = new_arch(&obj_file, diff_side)?;
     let split_meta = parse_split_meta(&obj_file)?;
     let (mut sections, section_indices) =
         map_sections(arch.as_ref(), &obj_file, split_meta.as_ref())?;