Add gnuv2_demangle to x86

Author: AngheloAlf

objdiff-core/Cargo.toml

@@ -105,6 +105,7 @@ x86 = [
     "dep:cpp_demangle",
     "dep:iced-x86",
     "dep:msvc-demangler",
+    "dep:gnuv2_demangle",
 ]
 arm = [
     "any-arch",

objdiff-core/src/arch/x86.rs

@@ -307,6 +307,13 @@ impl Arch for ArchX86 {
             cpp_demangle::Symbol::new(name)
                 .ok()
                 .and_then(|s| s.demangle(&cpp_demangle::DemangleOptions::default()).ok())
+                .or_else(|| {
+                    gnuv2_demangle::demangle(
+                        name,
+                        &gnuv2_demangle::DemangleConfig::new_no_cfilt_mimics(),
+                    )
+                    .ok()
+                })
         }
     }