Do not pass DexFile to ClassLinker::Lookup/ResolveMethod().

The DexFile can be easily retrieved from the DexCache,
so reduce the number of arguments that need to be passed.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Change-Id: I2e47280e7cb8b84595130c4abfb5ece18d7f5c75
diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index 093ec65..892c28d 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -7938,8 +7938,7 @@
 }
 
 template <ClassLinker::ResolveMode kResolveMode>
-ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file,
-                                      uint32_t method_idx,
+ArtMethod* ClassLinker::ResolveMethod(uint32_t method_idx,
                                       Handle<mirror::DexCache> dex_cache,
                                       Handle<mirror::ClassLoader> class_loader,
                                       ArtMethod* referrer,
@@ -7957,6 +7956,7 @@
     DCHECK(resolved->GetDeclaringClassUnchecked() != nullptr) << resolved->GetDexMethodIndex();
     return resolved;
   }
+  const DexFile& dex_file = *dex_cache->GetDexFile();
   const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx);
   ObjPtr<mirror::Class> klass = nullptr;
   if (valid_dex_cache_method) {
@@ -8048,8 +8048,7 @@
   }
 }
 
-ArtMethod* ClassLinker::ResolveMethodWithoutInvokeType(const DexFile& dex_file,
-                                                       uint32_t method_idx,
+ArtMethod* ClassLinker::ResolveMethodWithoutInvokeType(uint32_t method_idx,
                                                        Handle<mirror::DexCache> dex_cache,
                                                        Handle<mirror::ClassLoader> class_loader) {
   ArtMethod* resolved = dex_cache->GetResolvedMethod(method_idx, image_pointer_size_);
@@ -8060,6 +8059,7 @@
     return resolved;
   }
   // Fail, get the declaring class.
+  const DexFile& dex_file = *dex_cache->GetDexFile();
   const DexFile::MethodId& method_id = dex_file.GetMethodId(method_idx);
   ObjPtr<mirror::Class> klass =
       ResolveType(dex_file, method_id.class_idx_, dex_cache, class_loader);
@@ -8431,8 +8431,7 @@
       // the invocation type to determine if the method is private. We
       // then resolve again specifying the intended invocation type to
       // force the appropriate checks.
-      target_method = ResolveMethodWithoutInvokeType(*dex_file,
-                                                     method_handle.field_or_method_idx_,
+      target_method = ResolveMethodWithoutInvokeType(method_handle.field_or_method_idx_,
                                                      hs.NewHandle(referrer->GetDexCache()),
                                                      hs.NewHandle(referrer->GetClassLoader()));
       if (UNLIKELY(target_method == nullptr)) {
@@ -9033,14 +9032,12 @@
 
 // Instantiate ResolveMethod.
 template ArtMethod* ClassLinker::ResolveMethod<ClassLinker::ResolveMode::kCheckICCEAndIAE>(
-    const DexFile& dex_file,
     uint32_t method_idx,
     Handle<mirror::DexCache> dex_cache,
     Handle<mirror::ClassLoader> class_loader,
     ArtMethod* referrer,
     InvokeType type);
 template ArtMethod* ClassLinker::ResolveMethod<ClassLinker::ResolveMode::kNoChecks>(
-    const DexFile& dex_file,
     uint32_t method_idx,
     Handle<mirror::DexCache> dex_cache,
     Handle<mirror::ClassLoader> class_loader,