Added DexFile count manipulation function.

- is not in use atm, because injected apps were not executed anyway.
  See: Project-ARTist/meta#5 (comment)
- Android 8.0 Oreo injection works, but base.apk must get replaced with
  injected APK for it to work

runtime/oat.cc

@@ -477,6 +477,16 @@ bool OatHeader::IsConcurrentCopying() const {
   return IsKeyEnabled(OatHeader::kConcurrentCopying);
 }
 
+void OatHeader::ArtistFixDexFileCount() {
+  if (this->dex_file_count_ >= 2) {
+    VLOG(artist) << "ARTist Fixing Dexfile count, was: " << this->dex_file_count_;
+    --this->dex_file_count_;
+    VLOG(artist) << "ARTist Fixing Dexfile count, now: " << this->dex_file_count_;
+  } else {
+    VLOG(artist) << "ARTist NOT FIXINF Dexfile count, is " << this->dex_file_count_;
+  }
+}
+
 bool OatHeader::IsNativeDebuggable() const {
   return IsKeyEnabled(OatHeader::kNativeDebuggableKey);
 }

runtime/oat.h

@@ -114,6 +114,7 @@ class PACKED(4) OatHeader {
   bool IsNativeDebuggable() const;
   CompilerFilter::Filter GetCompilerFilter() const;
   bool IsConcurrentCopying() const;
+  void ArtistFixDexFileCount();
 
  private:
   bool KeyHasValue(const char* key, const char* value, size_t value_size) const;

runtime/parsed_options.cc

@@ -415,7 +415,7 @@ bool ParsedOptions::ProcessSpecialOptions(const RuntimeOptions& options,
 
 // Intended for local changes only.
 static void MaybeOverrideVerbosity() {
-  // gLogVerbosity.artist = true;  // TODO: don't check this in!
+  //  gLogVerbosity.artist = true;  // TODO: don't check this in!
   //  gLogVerbosity.artistd = true;  // TODO: don't check this in!
   //  gLogVerbosity.class_linker = true;  // TODO: don't check this in!
   //  gLogVerbosity.collector = true;  // TODO: don't check this in!