Add support for "new" and "delete" to the language.

Issue #139.

tests_errors/func-call-through-variable.ispc

@@ -0,0 +1,47 @@
+// Must provide function name or function pointer for function call expression
+
+export void saxpy_ispc(uniform int N,
+uniform float scale,
+uniform float X[],
+uniform float Y[],
+uniform float result[])
+{
+foreach (i = 0 ... N) {
+result[i] = scale * X[i] + Y[i];
+}
+}
+
+task void saxpy_ispc_task(uniform int N,
+uniform int span,
+uniform float scale,
+uniform float X[],
+uniform float Y[],
+uniform float result[])
+{
+uniform int indexStart;
+uniform int indexEnd;
+indexStart = (taskIndex * span);
+indexEnd = min(N, indexStart + (span)/8);
+foreach (i = indexStart ... indexEnd) {
+result[i] = scale * X[i] + Y[i];
+}
+uniform int k =0;
+for (k=0; k<8;k++) {
+indexStart = (((7-taskIndex-k)%8) * span) + k(span/8);
+indexEnd = min(N, indexStart + (span)/8);
+foreach (i = indexStart ... indexEnd) {
+result[i] = scale * X[i] + Y[i];
+}
+}
+}
+export void saxpy_ispc_withtasks(uniform int N,
+uniform float scale,
+uniform float X[],
+uniform float Y[],
+uniform float result[])
+{
+
+uniform int span = N / 8;  // 8 tasks
+
+launch[N/span] < saxpy_ispc_task(N, span, scale, X, Y, result) >;
+}