Merge pull request swiftlang#35431 from gottesmm/pr-3fce720b42647af82cf3c3d8fb3cd399929360e7

[sil] Fix a thinko in a comment.

Author: gottesmm

include/swift/SIL/SILValue.h

@@ -480,11 +480,10 @@ class ValueBase : public SILNode, public SILAllocated<ValueBase> {
   ///
   /// Operationally this means that:
   ///
-  /// * For SILArguments, this returns the first instruction in the block. This
-  ///   is the main divergence from getDefiningInsertionPoint (see discussion
-  ///   below).
+  /// * For SILArguments, this returns the first instruction in the block.
   ///
-  /// * For SILInstructions, this returns std::next.
+  /// * For SILInstructions, this returns std::next. This is the main divergence
+  ///   from getDefiningInsertionPoint() (see discussion below).
   ///
   /// * For SILUndef, this returns nullptr.
   ///