[lld] [lld][WebAssembly] Reset context object after each link (PR #78770)

[Steven Johnson via llvm-commits]

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@@ -47,6 +47,16 @@ namespace lld::wasm {
 Configuration *config;
 Ctx ctx;
 
+void Ctx::reset() {
+  objectFiles.clear();
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steven-johnson wrote:

Nit: shouldn't we reset *all* the fields, including the `bool` fields? (And maybe initialize `isPic` to some explicit value rather than leaving it as uninited?)

https://github.com/llvm/llvm-project/pull/78770