Simplify array bound checks and clarify comments.  One element array can have same non-zero number as lower bound as well as upper bound.

llvm-svn: 129170
diff --git a/llvm/docs/SourceLevelDebugging.html b/llvm/docs/SourceLevelDebugging.html
index 10c78f6..440f409 100644
--- a/llvm/docs/SourceLevelDebugging.html
+++ b/llvm/docs/SourceLevelDebugging.html
@@ -708,7 +708,8 @@
    <a href="#format_composite_type">composite type</a>.  The low value defines
    the lower bounds typically zero for C/C++.  The high value is the upper
    bounds.  Values are 64 bit.  High - low + 1 is the size of the array.  If low
-   > high the array will be unbounded.</p>
+   > high the array bounds are not included in generated debugging information.
+</p>
 
 </div>