NSTextCheckingResult: Rename method to match Darwin (#1231)

- resultByAdjustingRangesWithOffset() -> adjustingRanges(offset:)

Author: spevans

Foundation/NSTextCheckingResult.swift

@@ -87,7 +87,7 @@ internal class _NSRegularExpressionNSTextCheckingResultResult : NSTextCheckingRe
 
 extension NSTextCheckingResult {
 
-    public func resultByAdjustingRangesWithOffset(_ offset: Int) -> NSTextCheckingResult {
+    public func adjustingRanges(offset: Int) -> NSTextCheckingResult {
         let count = self.numberOfRanges
         var newRanges = [NSRange]()
         for idx in 0..<count {

TestFoundation/TestNSTextCheckingResult.swift

@@ -34,17 +34,17 @@ class TestNSTextCheckingResult: XCTestCase {
            let searchRange = NSMakeRange(0,7)
            let match: NSTextCheckingResult =  regex.firstMatch(in: searchString, options: searchOptions, range: searchRange)!
            //Positive offset
-           var result = match.resultByAdjustingRangesWithOffset(1)
+           var result = match.adjustingRanges(offset: 1)
            XCTAssertEqual(result.range(at: 0).location, 6)
            XCTAssertEqual(result.range(at: 1).location, NSNotFound)
            XCTAssertEqual(result.range(at: 2).location, 6)
            //Negative offset
-           result = match.resultByAdjustingRangesWithOffset(-2)
+           result = match.adjustingRanges(offset: -2)
            XCTAssertEqual(result.range(at: 0).location, 3)
            XCTAssertEqual(result.range(at: 1).location, NSNotFound)
            XCTAssertEqual(result.range(at: 2).location, 3)
            //ZeroOffset
-           result = match.resultByAdjustingRangesWithOffset(0)
+           result = match.adjustingRanges(offset: 0)
            XCTAssertEqual(result.range(at: 0).location, 5)
            XCTAssertEqual(result.range(at: 1).location, NSNotFound)
            XCTAssertEqual(result.range(at: 2).location, 5)