patch 8.1.1807: more functions can be used as a method

Problem:    More functions can be used as a method.
Solution:   Add append(), appendbufline(), assert_equal(), etc.
            Also add the :eval command.
diff --git a/src/ex_cmdidxs.h b/src/ex_cmdidxs.h
index fdb2cdf..1c301ba 100644
--- a/src/ex_cmdidxs.h
+++ b/src/ex_cmdidxs.h
@@ -10,27 +10,27 @@
   /* c */ 42,
   /* d */ 108,
   /* e */ 130,
-  /* f */ 150,
-  /* g */ 166,
-  /* h */ 172,
-  /* i */ 181,
-  /* j */ 199,
-  /* k */ 201,
-  /* l */ 206,
-  /* m */ 268,
-  /* n */ 286,
-  /* o */ 306,
-  /* p */ 318,
-  /* q */ 357,
-  /* r */ 360,
-  /* s */ 380,
-  /* t */ 448,
-  /* u */ 493,
-  /* v */ 504,
-  /* w */ 522,
-  /* x */ 536,
-  /* y */ 546,
-  /* z */ 547
+  /* f */ 151,
+  /* g */ 167,
+  /* h */ 173,
+  /* i */ 182,
+  /* j */ 200,
+  /* k */ 202,
+  /* l */ 207,
+  /* m */ 269,
+  /* n */ 287,
+  /* o */ 307,
+  /* p */ 319,
+  /* q */ 358,
+  /* r */ 361,
+  /* s */ 381,
+  /* t */ 449,
+  /* u */ 494,
+  /* v */ 505,
+  /* w */ 523,
+  /* x */ 537,
+  /* y */ 547,
+  /* z */ 548
 };
 
 /*
@@ -45,7 +45,7 @@
   /* b */ {  2,  0,  0,  4,  5,  7,  0,  0,  0,  0,  0,  8,  9, 10, 11, 12,  0, 13,  0,  0,  0,  0, 22,  0,  0,  0 },
   /* c */ {  3, 12, 16, 18, 20, 22, 25,  0,  0,  0,  0, 33, 37, 40, 46, 56, 58, 59, 60,  0, 62,  0, 65,  0,  0,  0 },
   /* d */ {  0,  0,  0,  0,  0,  0,  0,  0,  6, 15,  0, 16,  0,  0, 17,  0,  0, 19, 20,  0,  0,  0,  0,  0,  0,  0 },
-  /* e */ {  1,  0,  2,  0,  0,  0,  0,  0,  0,  0,  0,  7,  9, 10,  0,  0,  0,  0,  0,  0,  0,  0,  0, 16,  0,  0 },
+  /* e */ {  1,  0,  2,  0,  0,  0,  0,  0,  0,  0,  0,  7,  9, 10,  0,  0,  0,  0,  0,  0,  0, 16,  0, 17,  0,  0 },
   /* f */ {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  9,  0,  0,  0,  0,  0, 15,  0,  0,  0,  0,  0 },
   /* g */ {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  2,  0,  0,  4,  5,  0,  0,  0,  0 },
   /* h */ {  5,  0,  0,  0,  0,  0,  0,  0,  6,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 },
@@ -69,4 +69,4 @@
   /* z */ {  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }
 };
 
-static const int command_count = 560;
+static const int command_count = 561;