[llvm-cov] Add the "Go to first unexecuted line" feature.

This patch provides easy navigation to find the zero count lines, especially useful when the source file is very large.

Differential Revision: https://reviews.llvm.org/D23277

llvm-svn: 280739
diff --git a/llvm/tools/llvm-cov/SourceCoverageViewText.cpp b/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
index 2f568b2..52e405e 100644
--- a/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
+++ b/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
@@ -63,7 +63,8 @@
 
 void SourceCoverageViewText::renderViewFooter(raw_ostream &) {}
 
-void SourceCoverageViewText::renderSourceName(raw_ostream &OS, bool WholeFile) {
+void SourceCoverageViewText::renderSourceName(raw_ostream &OS, bool WholeFile,
+                                              unsigned FirstUncoveredLineNo) {
   getOptions().colored_ostream(OS, raw_ostream::CYAN) << getSourceName()
                                                       << ":\n";
   if (WholeFile) {