Update record IO tests to no longer use <~>

Signed-off-by: Ben Harshbarger <ben.harshb@gmail.com>

test/io/ferguson/recordeof.chpl

@@ -20,8 +20,13 @@ proc MyRecord.writeThis(f) throws {
 }
 
 proc MyRecord.readWriteHelper(f) throws {
-  f <~> i;
-  f <~> new ioLiteral("\n");
+  var nl = new ioLiteral("\n");
+  if f.writing then
+    f.write(i);
+  else
+    f.readIt(i);
+
+  if f.writing then f.write(nl); else f.read(nl);
 }
 
 {

test/io/ferguson/recordeof.good

@@ -1,2 +1,2 @@
-recordeof.chpl:30: warning: reader with a style argument is deprecated
+recordeof.chpl:35: warning: reader with a style argument is deprecated
 Done

test/io/recordio.chpl

@@ -87,9 +87,6 @@ var B: [0..#3] MyRecord;
    - f is a Writer or a Reader
    - the compiler will generate readThis/writeThis for you if you don't
      provide one
-   - the I/O operator <~> is available to read or write (depending
-     on which situation we are being called in). This operator will soon
-     be deprecated
  */
 proc MyRecord.readThis(f) throws {
   readWriteHelper(f);
@@ -100,20 +97,26 @@ proc MyRecord.writeThis(f) throws {
 }
 
 proc MyRecord.readWriteHelper(f) throws {
-  f <~> i;
-  f <~> new ioLiteral("\t");
-  f <~> r;
-  f <~> new ioLiteral("\t");
+  var tab = new ioLiteral("\t");
+  var nl = new ioLiteral("\n");
+  if f.writing then
+    f.write(i, tab, r, tab);
+  else
+    f.read(i, tab, r, tab);
 
   // When doing the string I/O, we need to specify that we'd like
   // the string to be single-quoted. Unfortunately, readf is
   // not currently available on a Reader, so we have to rely
   // on the caller setting the string formatting with the channel's
   // style.
   // In the future, we hope to allow readf in this situation. 
-  f <~> s;
+  // TODO: 'f.read' isn't respecting the desire for single-quotes
+  if f.writing then
+    f.write(s);
+  else
+    f.readIt(s);
 
-  f <~> new ioLiteral("\n");
+  if f.writing then f.write(nl); else f.read(nl);
 }
 
 {

test/io/recordio.good

@@ -1 +1 @@
-recordio.chpl:122: warning: reader with a style argument is deprecated
+recordio.chpl:124: warning: reader with a style argument is deprecated